Locate the Ubisoft folder on your HDD, usually found within program files(x86)

Open the savegames folder, you'll find a folder with your uplay account nickname hashed, it should be the only folder inside the savegames folder unless you have logged in and played as more than one uplay user.

C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\savegames\

Inside, sort the folders by date modified, copy the most recent ones from one of the folders(in most cases: folder "91") to folder "446"

Launch the game, you should find your save game intact and working. It's a good idea to make a small change, purchase, gear customization to check whether or not it was successful.

Notes

↑ 1.01.1File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/235600/ in addition to or instead of this directory. The app ID (235600) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.